除了指出微粒物质的污染被视为最大的健康威胁外，WHO空气质量指南还推荐调低日均臭氧限值。
Particulate matter pollution is considered the biggest health risk. But the WHO Air Quality Guidelines also recommended lowering the daily allowed limits for ozone.
这些将以现有的世卫组织室外空气质量指南以及最近出版的世卫组织关于特定室内污染物水平的指导意见为基础。
These build upon existing WHO outdoor air quality guidelines and recently published WHO guidance on levels of specific indoor pollutants.
世卫组织正在针对家用燃料的燃烧问题起草室内空气质量新指南。
WHO is preparing new indoor air quality guidelines for household fuel combustion.
世卫组织正在针对家用燃料的燃烧问题起草室内空气质量新指南。
WHO is preparing new indoor air quality guidelines for household fuel combustion.
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